System of house ventilation



(No Model.)

P. P. SMITH. SYSTEM OF HOUSE VENTILATION.

No. 485,141. Patented Oct. 25, 1892.

1 I & k J/eat UNITED STATES PATENT OFFICE,

FRED P. SMITH, OF YVORCESTER, ASSIGNOR TO THE SMITH HEATING AND VENTILATING COMPANY, OF BOSTON, MASSACHUSETTS.

SYSTEM OF HOUSE VENTILATION.

SPECIFICATION forming part of Letters Patent No. 485,141, dated October 25, 1892.

Application filed April 22, 1892. Serial No. 430,183. (No model.)

To all whom it may concern: the lower part of the room. A stop gate or Be it known that I, FRED P. SMITH, a citivalve is arranged within the flue and adapted zen of the United States, residing at Vorcesin suitable manner for controlling the flow of ter, in the county of Worcester and State of the aircurrent and cause the same to pass 55 Massachusetts, have invented a new and useeither through the upper register or opening ful System of House Ventilation, of which the or through the lower register or opening at following, together with the accompanying the option or pleasure of the attendant and drawings, is a specification sufficiently full, by the shifting of the valve or gate. clear, and exact to enable persons skilled in Referring to parts, A and A denote rooms 60 IO the art to which this invention appertains to to be ventilated, which may be school-rooms,

make and use the same. halls, oflices, chambers, or any other building The object of my present invention is to afapartment.

ford apractical and convenientsystem of ven- B B and b 1) denote the several floors and tilation for homes, school'houses,- churches, ceilings of the rooms. 5

halls, and other public or private buildings, D indicatestheingress-fiue orair-shaft,leadand to provide therein for the introduction of ing from the source of fresh-air supply or from fresh warmed air at the ceiling or upper part the heating apparatus H, whereby warmed and the withdrawal of vitiated air from the fresh air is conducted to the apartment, and floor or lower part of the room in winter, and E indicates the egress-flue or air-shaft, by way 70 for the reversal of these conditions in sumof which the vitiated air is withdrawn or conmer; also, in a ventilating system to provide ducted away from the apartment and up for the optional control and introduction of through the stack. fresh air, warmed or cold, either at the ceiling The delivery-openings from the flue D into or at the floor of the room, as may at any given the room A are indicated at d and d, and the 75 time be desired; also, to afford in a system of exit-openings from the room A to the flue E ventilation facilities for the withdrawal of are indicated at c and c. These openings in vitiated air from either the upper or lower the wall of the room are in practice best portion of a room, and means for controlling provided with suitable grills or ornamental or regulating the same at the option of the guards, as desired; but said grills have been 80 3o attendant. These objects I attain by the omitted from the drawing Fig.3 for simplifymethod and means herein illustrated and eX- ing the illustration. plained, the particular subject-matter claimed F indicates the stop gate or valve arranged being hereinafter definitely specified. in the ingress-flue D, preferably just above In the drawings, Figure 1 is a vertical secthe lower opening (Z, and adapted to swing 85 tion of aventilating air-conductoror ingressbackward for closing the flue-passage and flue illustrating my method of introducing opening the register d for delivery of air therethe fresh air or warmed air to the room. Fig. through or to swing forward for closing the 2 is avertical section of a ventilating air-eonregister-opening d and opening the flue-pasductor or egress fine, illustrating the withsage, so that the air will deliver through the 0 4o drawal of vitiated air from the room, and register d.

Fig. 3 is a perspective sectional view illus- G indicates the stop gate or valve arranged trating the arrangement of the ingress and in the egress-flue E, preferably ust below the egress fines, their registers, and valves. upper opening 6, and adapted for closing said In carrying out my improvement the build opening e and affording unobstructed passage 95 ing is provided with separate ingress and through the flue from the lower register 6 egress fines or ducts for each room. These when in forward position or to swing backfiues are each provided with two separate ward, so as to open the upper register or space openings or registers respectively located 6 and to close the flue-passage from the lower one at or near the ceiling or communicating register 6. Said valvesF and Gare provided I00 with the upper part of the room and the other with handles m or any convenient means for at or near the floor or communicating with effecting their operation and adjustment to forward or backward position or toany intermediate inclination between their limits of movement.

In buildings of several stories the ingressfiue for the lower room A can where convenient be a portion of the same structure as the egress-flue from the upper room A, a separating-partition I being built across the interior at the floor-line, as shown in Figs. 2 and 3.

In Fig. 1 there is shown the arrangement of a heater H or means for warming and delivering fresh air to the room A either at the floor or ceiling, and in Fig. 2 there is shown the arrangement of means for withdrawing vitiated air from the room A either at the floor or ceiling. These ingress andegress appliances can in some cases be employed separately, if desired, but are preferably employed together and as illustrated in Fig. 3. The fines or passages for both ingress and egress of air are best at the same side of the room and at the side opposite the windows. The circulation of air may be induced by mechanically-forced blast or exhaust action or in other instances by natural draft or a current movement induced by variation of temperature.

By the improvement herein described a system of ventilation is afforded whereby warmed fresh air can in winter be introduced at d at the ceiling or upper part of the room and the cooled or vitiated air withdrawn ate at the floor or lower part of the room, thus in an eflicient and practical manner meeting the requirements and conditions of cold-weather heating and ventilating. Then for summer, without change other than the shifting of the valves F and G, the fresh air can be introduced at d at the floor and.the

' cured by Letters Patent- 1. In a system of house ventilation, an ingress-flue or air-duct having an opening for delivering air into the room at or near the ceiling and another opening for delivering air into the room at or near the fioor and a stop gate or valve disposed Within said flue and controlling the passage for directing the air-current for delivery through either said upper or said lower opening, substantially as set forth.

2. In the system of house ventilation, the egress-flue or air-duct having an opening thereinto from the room at or near the floor and another opening from the room at or near .the ceiling and a stop gate or valve disposed within said fiue adjacent to said upper opening and adapted for closing the same and opening the flue below or to swing back, obstructing theflue from the loweropening and permitting air to pass through said upper opening, substantially as and for the purpose set forth.

3. In a system of house ventilation, the combination, with the apartment or room, of the ingress-flue having two openings for the delivery of air into said room, respectively located one at the upper and the other at the lower part of the room, and a cut-off or valve controlling the delivery of air through either one or the other of said openings, the egressflue provided with an upper opening and a lower opening, respectively located at or near the ceiling and floor of the room, and a cutoff or valve controlling the passage to afford exit of air through either one or the other of said openings, and means for operating said valves to change the delivery and exit to either upper or lower positions, substantially as and for the purpose set forth.

4. The combination of theingress-fiue having the upper and lower openings or air-delivery registers, the hinged cut-off valve arranged therein to swing over said lower opening and backward across the ingress-flue, the egress-flue having the upper and lower openings or air-exit registers, the hinged cut-0E valve arranged therein to swing over said upper opening and backward across said egressfiue, and valve-operating devices whereby an attendant can adjust said valves at any desired position, for the purposes set forth.

Vitness my hand this 13th day of April, A. D. 1892.

FRED P. SMITH.

Witnesses:

CHAS. H. BURLEIGH, GEO. M. RIcE. 

